Study of sequential semileptonic decays of b hadrons produced at the Tevatron

Apollinari, G.; Barone, M.; Fiori, I.; Giromini, P.; Happacher, F.; Miscetti, S.; Parri, A.; Ptohos, F.

Study of sequential semileptonic decays of b hadrons produced at the Tevatron

Authors

Description

We present a study of rates and kinematical properties of lepton pairs contained in central jets with transverse energy E_T > 15 GeV that are produced at the Fermilab Tevatron collider. We compare the data to a QCD prediction based on the HERWIG and QQ Monte Carlo generator programs.We find that the data are poorly described by the simulation, in which sequential semileptonic decays of single b quarks (b --> l c X with c --> l s X) are the major source of such lepton pairs.
25 pages, 8 figures. Some typos were fixed in the text and bibliography. Submitted to Phys. Rev. D